Systems and methods for imaging a concealed surface
OwnerTanya Chernyakova, Omer Gal +2inventors
InventorsTanya Chernyakova, Omer Gal, Assaf Kartowsky, Shay Moshe
Life of this patent
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Abstract
Radar systems and methods for imaging surfaces. A processor receives raw data from the radar and executes an image data generation. A display unit displays an image representing the targeted surface. The radar unit may be incorporated in a handheld scanner. Rectangular antenna arrays may be configured and processors may be operable such that the image data generated may be processed and displayed in real time.
Claims20
The method for generating a radar image of an object at close range from a two dimensional array of antennas, the method comprising:
- providing a display device;
- providing an array of transmitting antennas and receiving antennas arranged in a matrix of rectangular frames spaced at regular intervals;
- each of said transmitting antennas transmitting a radio signal into a target region;
- each of said receiving antennas receiving a radio signal reflected by an object within the target region;
- and
- generating image data by:
- for each receiver-transmitter pair generating a five dimensional S-parameter s(xt, yt, xr, yr, k);
- performing a four dimensional Fourier transform on the five dimensional S-parameter signal s(xt, yt, xr, yr, k), thereby generating a five dimensional k-space signal S(kxt, kyt, kxr, kyr, k);
- mapping the five dimensional k-space signal S(kxt, kyt, kxr, kyr, k) to a three dimensional image k-space signal I(kx, ky, kz);
- performing an inverse Fourier transform thereby generating the image signal I(x, y, z);
- and
- adjusting the display device to represent the image signal.
A scanning device for imaging a surface within a target region, the device comprising:
- a radar unit comprising:
- an array of transmitting antennas and receiving antennas arranged in a matrix of rectangular frames spaced at regular intervals;
- an oscillator connected to said transmitting antennas;
- a processor unit configured to receive raw data from the radar unit and operable to generate image data based upon the raw data by:
- for each receiver-transmitter pair generating a five dimensional S-parameter s(xt, yt, xr, yr, k);
- performing a four dimensional Fourier transform on the five dimensional S-parameter signal s(xt, yt, xr, yr, k), thereby generating a five dimensional k-space signal S(kxt, kyt, kxr, kyr, k);
- mapping the five dimensional k-space signal S(kxt, kyt, kxr, kyr, k) to a three dimensional image k-space signal I(kx, ky, kg);
- performing an inverse Fourier transform thereby generating the image signal I(x, y, z);
- and
- a memory unit configured and operable to store the image data;
- a display configured and operable to display an image representing the surface.
Dependencies are inferred from the claim text.